EXIF gave it away.

[Image]
Make = Apple
Model = iPhone
Orientation = top/left
Resolution Unit = inch
Date Time = 2007-11-17 21:05:44
Exif IFD Pointer = Offset: 119
[Camera]
F Number = F2.8
Date Time Original = 2007-11-17 21:05:44
Date Time Digitized = 2007-11-17 21:05:44
Color Space = sRGB
Exif Image Width = 1600
Exif Image Height = 1200
Gamma = 2.2
[Thumbnail Info]
Compression = JPEG Compressed (Thumbnail)
Orientation = top/left
Resolution Unit = inch
JPEG Interchange Format = Offset: 331
JPEG Interchange Format Length = Length: 8299
[Thumbnail]
Thumbnail = 160 x 120